Respuesta :

Answer:

  • Monomial of degree 2
  • Binomial of degree 1
  • Trinomial of degree 3

Step-by-step explanation:

9xy

  • It has one term = monomial
  • It has a product of two variables of each degree = 1*2 = degree 2

-----------------

x-3y+7x = 8x - 3y

  • It has 2 therms = binomial
  • It has 2 variables of degree one = degree 1

 -----------------

19ab+8abc-27a = 8abc + 19ab - 27a

  • It has 3 terms = trinomial
  • It has 3 variables, the greatest degree is the product of 3 of them of the first degree = 1 *3 = degree 3